Strip steel slitting device

Abstract

The utility model discloses a strip steel slitting device which comprises a conveying mechanism and a slitting mechanism, the conveying mechanism comprises a rack, a plurality of carrier rollers and a plurality of supporting plates are arranged on the rack, a conveying roller for driving a steel plate to move is arranged on the rack, and the slitting mechanism comprises an upper cutting roller and a lower cutting roller. A first driving device for driving the upper cutting roller and the lower cutting roller to rotate relatively is arranged on the rack, an upper cutting block is arranged on the upper cutting roller, a lower cutting block is arranged on the lower cutting roller, an upper cutting surface is arranged on the upper cutting block in the direction facing the steel plate moving upstream, and a lower cutting surface is arranged on the lower cutting block in the direction facing the steel plate moving downstream. And the upper cutting surface is matched with the lower cutting surface. According to the utility model, the upper cutting roller and the lower cutting roller are matched in a rolling manner to cut a steel plate, the gravity in the vertical direction does not need to be overcome, and the energy consumption is low; and excessive noise caused by collision between the cutter and the steel plate can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling, in particular to a strip steel slitting device. Background Art

[0002] The strip steel slitting device is an important device in the iron and steel production and processing industry, mainly used for cutting continuous strip steel into required lengths for subsequent processing or packaging. The current strip steel slitting device includes a conveying mechanism and a slitting mechanism. The slitting mechanism generally drives a cutting plate to reciprocate up and down through a hydraulic cylinder to slit the strip steel. This slitting method has the following disadvantages: The hydraulic cylinder needs to overcome the gravity of the cutting plate to lift the cutting plate, and then drives the cutting plate to move downward to cut the steel plate. The weight of the cutting plate is relatively large, and the hydraulic cylinder overcoming its gravity will consume a lot of energy; when the cutting plate cuts the steel plate, it will directly cause collisions, and the noise during cutting is relatively large. Content of the Utility Model

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a strip steel slitting device, thereby effectively solving the deficiencies existing in the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a strip steel slitting device, including a conveying mechanism and a slitting mechanism. The conveying mechanism includes a frame, on which a plurality of carrying rollers and a plurality of supporting plates are arranged. A conveying roller for driving the steel plate to move is arranged on the frame. The slitting mechanism includes an upper cutting roller and a lower cutting roller. A first driving device for driving the upper cutting roller and the lower cutting roller to rotate relatively is arranged on the frame. Upper cutting blocks are arranged on the upper cutting roller, and lower cutting blocks are arranged on the lower cutting roller. An upper cutting surface is arranged on the upper cutting block facing the upstream direction of the steel plate movement, and a lower cutting surface is arranged on the lower cutting block facing the downstream direction of the steel plate movement. The upper cutting surface cooperates with the lower cutting surface.

[0005] Further, an upper cutting mounting seat is arranged at the bottom of the upper cutting block. An upper cutting mounting groove is formed on the upper cutting roller. The upper cutting mounting seat is fixed in the upper cutting mounting groove through bolts.

[0006] Further, a lower cutting mounting seat is arranged at the bottom of the lower cutting block. A lower cutting mounting groove is formed under the lower cutting roller. The lower cutting mounting seat is fixed in the lower cutting mounting groove through bolts.

[0007] Further, an upper pressure roller and a lower pressure roller are arranged on the front side of the upper cutting roller and the lower cutting roller. A second driving device for driving the upper pressure roller and the lower pressure roller to rotate relatively is arranged on the frame. A pressing block with a pointed front end is arranged on the lower pressure roller. A supporting block is arranged on the upper pressure roller to cooperate with the pressing block. The pressing block and the supporting block do not contact each other, and the distance between the pressing block and the supporting block is less than the thickness of the steel plate.

[0008] Furthermore, a pressing block mounting seat is provided at the bottom of the pressing block, a pressing block mounting groove is formed on the lower pressing roller, and the pressing block mounting seat is fixed in the pressing block mounting groove by bolts.

[0009] Furthermore, a support mounting seat is provided at the bottom of the support block, a support mounting groove is formed on the upper pressing roller, and the support block mounting seat is fixed in the support mounting groove by bolts.

[0010] The above technical solution of the present utility model has the following beneficial effects: The present utility model cuts the steel plate through the rolling cooperation of the upper cutting roller and the lower cutting roller, does not need to overcome the gravity in the vertical direction, and has less energy consumption; it can also avoid excessive noise generated by the collision between the cutting tool and the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a side schematic view of an embodiment of the present utility model;

[0012] Figure 2 It is a top schematic view of an embodiment of the present utility model;

[0013] Figure 3 It is a schematic view of the cooperation between the upper cutting block and the lower cutting block of an embodiment of the present utility model;

[0014] Figure 4 It is a schematic view of the cooperation between the pressing block and the support block of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following describes the preferred embodiments of the present utility model in detail in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0016] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] AsFigures 1-4 As shown in the figure, a strip slitting device of this embodiment includes a conveying mechanism and a slitting mechanism. The conveying mechanism includes a frame 1, on which a plurality of carrying rollers 2 and a plurality of supporting plates 3 are arranged. A conveying roller 4 for driving the steel plate to move is arranged on the frame 1. The conveying roller 4 is driven by a reduction motor (not shown in the figure). Two conveying rollers 4 drive the steel plate to be conveyed. The slitting mechanism includes an upper slitting roller 5 and a lower slitting roller 6. A first driving device 7 for driving the upper slitting roller 5 and the lower slitting roller 6 to rotate relatively is arranged on the frame 1. An upper cutting block 8 is arranged on the upper slitting roller 5, and a lower cutting block 9 is arranged on the lower slitting roller 6. An upper cutting surface is arranged on the upper cutting block 8 in the direction upstream of the movement of the steel plate, and a lower cutting surface is arranged on the lower cutting block 9 in the direction downstream of the movement of the steel plate. The upper cutting surface cooperates with the lower cutting surface. The first driving device 7 is a combination of a reduction gear and a servo motor. The first driving device 7 can drive the upper slitting roller 5 to rotate. The upper slitting roller 5 and the lower slitting roller 6 can be driven by a first gear set 51. The upper slitting roller 5 and the lower slitting roller 6 rotate relatively. When the upper cutting block 8 and the lower cutting block 9 rotate to the position where they cooperate with each other, the steel plate is cut. Among them, the servo motor can adjust the rotational speed to change the period of one rotation of the upper slitting roller 5 and the lower slitting roller 6, so as to change the length of the cut section of the steel plate (wherein the servo motor can change the rotational speed before the upper cutting block 8 and the lower cutting block 9 contact the steel plate. After the upper cutting block 8 and the lower cutting block 9 contact the steel plate, the linear velocity of the upper cutting block 8 and the lower cutting block 9 can be made the same as the conveying speed of the steel plate).

[0018] Preferably, an upper cutting mounting seat 10 is arranged at the bottom of the upper cutting block 8. An upper cutting mounting groove 11 is formed on the upper slitting roller 5. The upper cutting mounting seat 10 is fixed in the upper cutting mounting groove 11 by bolts. When the upper cutting block 8 needs to be replaced after long-term use, the upper cutting mounting seat 10 can be removed, and a new upper cutting mounting seat 10 and upper cutting block 8 can be replaced.

[0019] Preferably, a lower cutting mounting seat 12 is arranged at the bottom of the lower cutting block 9. A lower cutting mounting groove 13 is formed under the lower slitting roller 6. The lower cutting mounting seat 12 is fixed in the lower cutting mounting groove 13 by bolts. When the lower cutting block 9 needs to be replaced after long-term use, the lower cutting mounting seat 12 can be removed, and a new lower cutting mounting seat 12 and lower cutting block 9 can be replaced.

[0020] Preferably, an upper pressure roller 14 and a lower pressure roller 15 are arranged on the front sides of the upper cutting roller 5 and the lower cutting roller 6. A second driving device 16 for driving the upper pressure roller 14 and the lower pressure roller 15 to rotate relatively is arranged on the frame 1. The second driving device 16 drives the upper pressure roller 14 to rotate, and the upper pressure roller 14 and the lower pressure roller 15 are driven by a second gear set 17; a pressing block 18 with a sharp front end is arranged on the lower pressure roller 15, and a supporting block 19 is arranged on the upper pressure roller 14 in cooperation with the pressing block 18. The pressing block 18 and the supporting block 19 do not contact each other, and the distance between the pressing block 18 and the supporting block 19 is smaller than the thickness of the steel plate; the second driving device 16 is a combination of a speed reducer and a servo motor. Before the steel plate is cut by the upper cutting block 8 and the lower cutting block 9, it can first pass between the upper pressure roller 14 and the lower pressure roller 15. Through the cooperation of the pressing block 18 and the supporting block 19, the sharp corner of the pressing block 18 first presses an indentation on the bottom of the steel plate, reducing the thickness of the steel plate at the cutting position, and there is a gap between the supporting block 19 and the steel plate, and the steel plate will generate a small upward bend here; then when the steel plate passes through the upper cutting block 8 and the lower cutting block 9 for cutting, the upper cutting block 8 pressing down on the steel plate will cause the position of the indentation of the steel plate to bend downward, and it is easier to generate fractures at the indentation, so that it is more convenient for the upper cutting block 8 and the lower cutting block 9 to cut the steel plate;

[0021] Preferably, a pressing block mounting seat 20 is arranged at the bottom of the pressing block 18, and a pressing block mounting groove 21 is formed on the lower pressure roller 15. The pressing block mounting seat 20 is fixed in the pressing block mounting groove 21 by bolts; when the pressing block 18 needs to be replaced after long-term use, the pressing block mounting seat 20 can be removed, and a new pressing block mounting seat 20 and pressing block 18 can be replaced;

[0022] Preferably, a supporting mounting seat 22 is arranged at the bottom of the supporting block 19, and a supporting mounting groove 23 is formed on the upper pressure roller 14. The supporting mounting seat 22 is fixed in the supporting mounting groove 23 by bolts; when the supporting block 19 needs to be replaced after long-term use, the supporting mounting seat 22 can be removed, and a new supporting mounting seat 22 and supporting block 19 can be replaced.

[0023] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A strip steel slitting device, comprising a conveying mechanism and a slitting mechanism, wherein the conveying mechanism comprises a frame, a plurality of rollers and a plurality of supporting plates are arranged on the frame, and a conveying roller for driving the steel plate to move is arranged on the frame, characterized in that: The slitting mechanism includes an upper cutting roller and a lower cutting roller. The frame is provided with a first driving device that drives the upper cutting roller and the lower cutting roller to rotate relative to each other. The upper cutting roller is provided with an upper cutting block, and the lower cutting roller is provided with a lower cutting block. The upper cutting block is provided with an upper cutting surface in the direction of the steel plate moving upstream, and the lower cutting block is provided with a lower cutting surface in the direction of the steel plate moving downstream, and the upper cutting surface cooperates with the lower cutting surface.

2. A strip steel slitting device according to claim 1, characterized in that: An upper cutting mounting seat is arranged at the bottom of the upper cutting block, an upper cutting mounting groove is opened on the upper cutting roller, and the upper cutting mounting seat is fixed in the upper cutting mounting groove by bolts.

3. The strip steel slitting device according to claim 1, characterized in that: A lower cutting mounting seat is arranged at the bottom of the lower cutting block, a lower cutting mounting groove is opened under the lower cutting roller, and the lower cutting mounting seat is fixed in the lower cutting mounting groove by bolts.

4. The strip steel slitting device according to claim 1, characterized in that: An upper pressing roller and a lower pressing roller are arranged on the front sides of the upper cutting roller and the lower cutting roller, a second driving device for driving the upper pressing roller and the lower pressing roller to rotate relative to each other is arranged on the frame, a pressing block with a pointed front end is arranged on the lower pressing roller, a supporting block is arranged on the upper pressing roller to cooperate with the pressing block, the pressing block does not contact the supporting block, and the distance between the pressing block and the supporting block is less than the thickness of the steel plate.

5. The strip steel slitting device according to claim 4, characterized in that: A pressing block mounting seat is arranged at the bottom of the pressing block, a pressing block mounting groove is opened on the lower pressing roller, and the pressing block mounting seat is fixed in the pressing block mounting groove by bolts.

6. The strip steel slitting device according to claim 4, characterized in that: A support mounting seat is arranged at the bottom of the support block, a support mounting groove is opened on the upper pressure roller, and the support block mounting seat is fixed in the support mounting groove by bolts.

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